A single question can be more influential than a thousand statements.
Stupidity trumps Machiavelli almost every time when you are looking for an explanation.
The discipline you learn and character you build from setting and achieving a goal can be more valuable than the achievement of the goal itself
Every human being has the potential for greatness.
When it comes to success, there are no shortcuts.
If you want plenty of experience in dealing with difficult people, then have kids.